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3.  The profit margin rate required from financing. 4.  The collection mode of receivables or the duration of receivables both the
acquiring cost and profit margin A receivable collection date is excluded in the calculation of a daily profit
margin.
D. Nominating an agent or representatives Wakalah
In context of banking, wakalah arises when a client authorises the bank to represent him or her in carrying out a certain job, such  LC book-balancing, bill
collection, or money transfer. Both  the  bank  and  the  client  subjected  under  the  authorisation  contract
must be legally capable. Especially for the opening of an LC, if the client‟s funds are inadequate, the LC settlement can be done through murabaha.
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Usually  in  a  murabaha  scheme,  the  client  would  request  financing  for  a certain commodity, the bank would then purchase the commodity and re-sell it to
the  customer  at  an  agreed  profit  margin  whereby  the  customer  would  settle  the payment in instalments.
For  example,  the  client  wishes  to  purchase  a  house,  the  bank  would nominated  the  client  as  an  agent  wakalah  agreement  to  purchase  the  house  on
behalf of the bank from  the third party  supplier. Once the bank is informed of the  purchase,  the  bank  draws  up  a  murabaha  contract  whereby  the  bank  re-sells
the house to the client at an agreed profit margin.
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Karim, Adiwarman, Islamic Banking Fiqh, p. 107
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MUI  Fatwa  No.04DSN-MUIIV2000  April  1,  2000
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26  Dzulhijah  H 1420 have established that if the Bank nominates the customer as an agent to buy
goods  from  a  third  party,  then  the  sale  and  purchase  agreement  murabahah should be done after the goods are owned by the Bank. In other words, granting
authority  Wakalah  from  the  Bank  to  the  Customer  or  any  third  party,  must  be done before the contract of sale and Murabahah happens.
Bank  Indonesia  BI  seems  pretty  explicit  in  this  regard.  Bank  Indonesia Regulation  PBI  No.746PBI2005  dated  14  November  2005
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on  the standardization of contract, the central bank reiterates the use of Wakalah in the in
article 9, paragraph 1, point d in the case of the Customer representing the bank Wakalah for buying of goods, then Murabahah should in principle be done after
the goods become the property of the Bank. Then asserted, which is in principle the  Banks  Articles  of  Agreement  in  Wakalah  Murabaha  is  the  flow  of  funds
directed to suppliers of goods or evidenced by receipt of purchase.
E. The Tax System applied on Murabaha